10126781807 has 2 divisors, whose sum is σ = 10126781808. Its totient is φ = 10126781806.

The previous prime is 10126781773. The next prime is 10126781809. The reversal of 10126781807 is 70818762101.

It is a strong prime.

It is an emirp because it is prime and its reverse (70818762101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10126781807 - 2⁸ = 10126781551 is a prime.

Together with 10126781809, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10126781809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5063390903 + 5063390904.

It is an arithmetic number, because the mean of its divisors is an integer number (5063390904).

Almost surely, 2^10126781807 is an apocalyptic number.

10126781807 is a deficient number, since it is larger than the sum of its proper divisors (1).

10126781807 is an equidigital number, since it uses as much as digits as its factorization.

10126781807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 41.

The spelling of 10126781807 in words is "ten billion, one hundred twenty-six million, seven hundred eighty-one thousand, eight hundred seven".